EP2181174A1 - Liquid crystal display - Google Patents
Liquid crystal displayInfo
- Publication number
- EP2181174A1 EP2181174A1 EP08785244A EP08785244A EP2181174A1 EP 2181174 A1 EP2181174 A1 EP 2181174A1 EP 08785244 A EP08785244 A EP 08785244A EP 08785244 A EP08785244 A EP 08785244A EP 2181174 A1 EP2181174 A1 EP 2181174A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- diyl
- atoms
- compounds
- groups
- replaced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 144
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 230000002459 sustained effect Effects 0.000 claims abstract description 4
- -1 SF 5 Inorganic materials 0.000 claims description 120
- 125000004432 carbon atom Chemical group C* 0.000 claims description 66
- 125000000217 alkyl group Chemical group 0.000 claims description 52
- 229910052731 fluorine Inorganic materials 0.000 claims description 34
- 229910052801 chlorine Inorganic materials 0.000 claims description 31
- 238000006116 polymerization reaction Methods 0.000 claims description 23
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 125000001072 heteroaryl group Chemical group 0.000 claims description 15
- 125000003545 alkoxy group Chemical group 0.000 claims description 14
- 229910052736 halogen Inorganic materials 0.000 claims description 13
- 150000002367 halogens Chemical class 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 12
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 12
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 229910052794 bromium Inorganic materials 0.000 claims description 10
- 229910052740 iodine Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 125000004434 sulfur atom Chemical group 0.000 claims description 9
- 125000003107 substituted aryl group Chemical group 0.000 claims description 8
- 125000004448 alkyl carbonyl group Chemical group 0.000 claims description 6
- 125000004453 alkoxycarbonyl group Chemical group 0.000 claims description 5
- 125000005194 alkoxycarbonyloxy group Chemical group 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 125000005196 alkyl carbonyloxy group Chemical group 0.000 claims description 4
- 125000004104 aryloxy group Chemical group 0.000 claims description 4
- 125000005553 heteroaryloxy group Chemical group 0.000 claims description 3
- 125000001181 organosilyl group Chemical group [SiH3]* 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 150000003384 small molecules Chemical class 0.000 claims description 2
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 2
- 239000007788 liquid Substances 0.000 claims 2
- 125000005725 cyclohexenylene group Chemical group 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 51
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 36
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical group C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 36
- 150000003254 radicals Chemical class 0.000 description 35
- 125000003342 alkenyl group Chemical group 0.000 description 28
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 27
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 24
- 239000012071 phase Substances 0.000 description 19
- 125000003118 aryl group Chemical group 0.000 description 18
- 229910052739 hydrogen Inorganic materials 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 15
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 12
- 101150065749 Churc1 gene Proteins 0.000 description 12
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 12
- 102100038239 Protein Churchill Human genes 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 11
- 239000000741 silica gel Substances 0.000 description 11
- 229910002027 silica gel Inorganic materials 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 9
- 239000007787 solid Substances 0.000 description 9
- 239000003054 catalyst Substances 0.000 description 8
- 150000002430 hydrocarbons Chemical group 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- RYUONCUKLNZBCM-UHFFFAOYSA-N 3-[3-[3-(2-methylprop-2-enoyloxy)phenyl]phenoxy]propyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCOC1=CC=CC(C=2C=C(OC(=O)C(C)=C)C=CC=2)=C1 RYUONCUKLNZBCM-UHFFFAOYSA-N 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium on carbon Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 7
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 7
- 239000012230 colorless oil Substances 0.000 description 7
- 229910052938 sodium sulfate Inorganic materials 0.000 description 7
- 235000011152 sodium sulphate Nutrition 0.000 description 7
- 125000001424 substituent group Chemical group 0.000 description 7
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000003999 initiator Substances 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- 238000005160 1H NMR spectroscopy Methods 0.000 description 5
- VZQSBJKDSWXLKX-UHFFFAOYSA-N 3-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C=C(O)C=CC=2)=C1 VZQSBJKDSWXLKX-UHFFFAOYSA-N 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N EtOH Substances CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 125000000304 alkynyl group Chemical group 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- YNHIGQDRGKUECZ-UHFFFAOYSA-L bis(triphenylphosphine)palladium(ii) dichloride Chemical compound [Cl-].[Cl-].[Pd+2].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 YNHIGQDRGKUECZ-UHFFFAOYSA-L 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000000706 filtrate Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- LMHDCHISQHARQG-UHFFFAOYSA-N 4-[3-[4-(2-methylprop-2-enoyloxy)butyl]-5-(4-prop-2-enoyloxyphenyl)phenyl]butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCCCC1=CC(CCCCOC(=O)C(C)=C)=CC(C=2C=CC(OC(=O)C=C)=CC=2)=C1 LMHDCHISQHARQG-UHFFFAOYSA-N 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical group C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- RHBPGNGRIHUPKL-UHFFFAOYSA-N [3-(3-prop-2-enoyloxyphenyl)phenyl] prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC(C=2C=C(OC(=O)C=C)C=CC=2)=C1 RHBPGNGRIHUPKL-UHFFFAOYSA-N 0.000 description 4
- 239000012043 crude product Substances 0.000 description 4
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- 125000000623 heterocyclic group Chemical group 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- SHNJHLWLAGUBOV-UHFFFAOYSA-N sodium;oxido(oxo)borane;octahydrate Chemical compound O.O.O.O.O.O.O.O.[Na+].[O-]B=O SHNJHLWLAGUBOV-UHFFFAOYSA-N 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 description 3
- WIJNYNBSPQMJGO-UHFFFAOYSA-N (3-phenylmethoxyphenyl)boronic acid Chemical compound OB(O)C1=CC=CC(OCC=2C=CC=CC=2)=C1 WIJNYNBSPQMJGO-UHFFFAOYSA-N 0.000 description 3
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 3
- ORFVRHYZIACRDY-UHFFFAOYSA-N 1,3-dibromo-5-(4-phenylmethoxyphenyl)benzene Chemical compound BrC1=CC(Br)=CC(C=2C=CC(OCC=3C=CC=CC=3)=CC=2)=C1 ORFVRHYZIACRDY-UHFFFAOYSA-N 0.000 description 3
- CBQORTJRHUTDAF-UHFFFAOYSA-N 2-(4-phenylmethoxybut-1-enyl)-4-(3-phenylmethoxyphenyl)phenol Chemical compound OC1=CC=C(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)C=C1C=CCCOCC1=CC=CC=C1 CBQORTJRHUTDAF-UHFFFAOYSA-N 0.000 description 3
- BUQAMYAHTCYUPJ-UHFFFAOYSA-N 3-[3-(3-hydroxypropoxy)phenyl]phenol Chemical compound OCCCOC1=CC=CC(C=2C=C(O)C=CC=2)=C1 BUQAMYAHTCYUPJ-UHFFFAOYSA-N 0.000 description 3
- SHQQKILJBWSMPF-UHFFFAOYSA-N 3-[3-(3-hydroxypropyl)phenyl]phenol Chemical compound OCCCC1=CC=CC(C=2C=C(O)C=CC=2)=C1 SHQQKILJBWSMPF-UHFFFAOYSA-N 0.000 description 3
- UHOXVQIPTCXNTK-UHFFFAOYSA-N 3-[3-(3-phenylmethoxyphenyl)phenyl]propanoic acid Chemical compound OC(=O)CCC1=CC=CC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=C1 UHOXVQIPTCXNTK-UHFFFAOYSA-N 0.000 description 3
- AHCJTSMIQMWSCY-UHFFFAOYSA-N 5-[4-(2-hydroxyethyl)phenyl]benzene-1,3-diol Chemical compound C1=CC(CCO)=CC=C1C1=CC(O)=CC(O)=C1 AHCJTSMIQMWSCY-UHFFFAOYSA-N 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- RWRDLPDLKQPQOW-UHFFFAOYSA-N Pyrrolidine Chemical group C1CCNC1 RWRDLPDLKQPQOW-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 125000002723 alicyclic group Chemical group 0.000 description 3
- 125000002947 alkylene group Chemical group 0.000 description 3
- 125000003710 aryl alkyl group Chemical group 0.000 description 3
- 235000010290 biphenyl Nutrition 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Chemical group C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- VHRYZQNGTZXDNX-UHFFFAOYSA-N methacryloyl chloride Chemical compound CC(=C)C(Cl)=O VHRYZQNGTZXDNX-UHFFFAOYSA-N 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 125000001624 naphthyl group Chemical group 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- DMJHEIDWSIAXCS-UHFFFAOYSA-N (4-phenylmethoxyphenyl)boronic acid Chemical compound C1=CC(B(O)O)=CC=C1OCC1=CC=CC=C1 DMJHEIDWSIAXCS-UHFFFAOYSA-N 0.000 description 2
- WQADWIOXOXRPLN-UHFFFAOYSA-N 1,3-dithiane Chemical compound C1CSCSC1 WQADWIOXOXRPLN-UHFFFAOYSA-N 0.000 description 2
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 description 2
- HVWZMGZBJCJDOX-UHFFFAOYSA-N 1-bromo-3-phenylmethoxybenzene Chemical compound BrC1=CC=CC(OCC=2C=CC=CC=2)=C1 HVWZMGZBJCJDOX-UHFFFAOYSA-N 0.000 description 2
- OCTKIAPNJUMTAC-UHFFFAOYSA-N 1-phenylmethoxy-3-(3-phenylmethoxyphenyl)benzene Chemical group C=1C=CC=CC=1COC(C=1)=CC=CC=1C(C=1)=CC=CC=1OCC1=CC=CC=C1 OCTKIAPNJUMTAC-UHFFFAOYSA-N 0.000 description 2
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- CYZDRMIECPEHRU-UHFFFAOYSA-N 2-[4-(3,5-dimethoxyphenyl)phenyl]ethanol Chemical compound COC1=CC(OC)=CC(C=2C=CC(CCO)=CC=2)=C1 CYZDRMIECPEHRU-UHFFFAOYSA-N 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 2
- HSZOQEGJICWJDP-UHFFFAOYSA-N 3,4',5-Biphenyltriol Chemical compound C1=CC(O)=CC=C1C1=CC(O)=CC(O)=C1 HSZOQEGJICWJDP-UHFFFAOYSA-N 0.000 description 2
- PEPMVIONOZNVRR-UHFFFAOYSA-N 3-[3-(3-phenylmethoxyphenyl)phenyl]propan-1-ol Chemical compound OCCCC1=CC=CC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=C1 PEPMVIONOZNVRR-UHFFFAOYSA-N 0.000 description 2
- IASVAZSPHNZJGR-UHFFFAOYSA-N 4-bromo-2-(4-phenylmethoxybut-1-enyl)phenol Chemical compound OC1=CC=C(Br)C=C1C=CCCOCC1=CC=CC=C1 IASVAZSPHNZJGR-UHFFFAOYSA-N 0.000 description 2
- KDCGOANMDULRCW-UHFFFAOYSA-N 7H-purine Chemical group N1=CNC2=NC=NC2=C1 KDCGOANMDULRCW-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- PCNDJXKNXGMECE-UHFFFAOYSA-N Phenazine Chemical group C1=CC=CC2=NC3=CC=CC=C3N=C21 PCNDJXKNXGMECE-UHFFFAOYSA-N 0.000 description 2
- NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- KYQCOXFCLRTKLS-UHFFFAOYSA-N Pyrazine Chemical group C1=CN=CC=N1 KYQCOXFCLRTKLS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical group C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- DZBUGLKDJFMEHC-UHFFFAOYSA-N acridine Chemical compound C1=CC=CC2=CC3=CC=CC=C3N=C21 DZBUGLKDJFMEHC-UHFFFAOYSA-N 0.000 description 2
- HFBMWMNUJJDEQZ-UHFFFAOYSA-N acryloyl chloride Chemical compound ClC(=O)C=C HFBMWMNUJJDEQZ-UHFFFAOYSA-N 0.000 description 2
- 125000002877 alkyl aryl group Chemical group 0.000 description 2
- 125000005248 alkyl aryloxy group Chemical group 0.000 description 2
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 2
- 125000002102 aryl alkyloxo group Chemical group 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- TXCDCPKCNAJMEE-UHFFFAOYSA-N dibenzofuran Chemical compound C1=CC=C2C3=CC=CC=C3OC2=C1 TXCDCPKCNAJMEE-UHFFFAOYSA-N 0.000 description 2
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 125000003709 fluoroalkyl group Chemical group 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- DMEGYFMYUHOHGS-UHFFFAOYSA-N heptamethylene Natural products C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- PQNFLJBBNBOBRQ-UHFFFAOYSA-N indane Chemical group C1=CC=C2CCCC2=C1 PQNFLJBBNBOBRQ-UHFFFAOYSA-N 0.000 description 2
- AWJUIBRHMBBTKR-UHFFFAOYSA-N isoquinoline Chemical compound C1=NC=CC2=CC=CC=C21 AWJUIBRHMBBTKR-UHFFFAOYSA-N 0.000 description 2
- CTAPFRYPJLPFDF-UHFFFAOYSA-N isoxazole Chemical compound C=1C=NOC=1 CTAPFRYPJLPFDF-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 2
- 125000000962 organic group Chemical group 0.000 description 2
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- RDOWQLZANAYVLL-UHFFFAOYSA-N phenanthridine Chemical compound C1=CC=C2C3=CC=CC=C3C=NC2=C1 RDOWQLZANAYVLL-UHFFFAOYSA-N 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
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- ZYMKZMDQUPCXRP-UHFFFAOYSA-N fluoro prop-2-enoate Chemical compound FOC(=O)C=C ZYMKZMDQUPCXRP-UHFFFAOYSA-N 0.000 description 1
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 1
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- ZLTPDFXIESTBQG-UHFFFAOYSA-N isothiazole Chemical compound C=1C=NSC=1 ZLTPDFXIESTBQG-UHFFFAOYSA-N 0.000 description 1
- 239000012280 lithium aluminium hydride Substances 0.000 description 1
- VXWPONVCMVLXBW-UHFFFAOYSA-M magnesium;carbanide;iodide Chemical compound [CH3-].[Mg+2].[I-] VXWPONVCMVLXBW-UHFFFAOYSA-M 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
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- OKDQKPLMQBXTNH-UHFFFAOYSA-N n,n-dimethyl-2h-pyridin-1-amine Chemical compound CN(C)N1CC=CC=C1 OKDQKPLMQBXTNH-UHFFFAOYSA-N 0.000 description 1
- PSHKMPUSSFXUIA-UHFFFAOYSA-N n,n-dimethylpyridin-2-amine Chemical compound CN(C)C1=CC=CC=N1 PSHKMPUSSFXUIA-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000003136 n-heptyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
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- NIHNNTQXNPWCJQ-UHFFFAOYSA-N o-biphenylenemethane Natural products C1=CC=C2CC3=CC=CC=C3C2=C1 NIHNNTQXNPWCJQ-UHFFFAOYSA-N 0.000 description 1
- 125000004365 octenyl group Chemical group C(=CCCCCCC)* 0.000 description 1
- 125000005069 octynyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C#C* 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- WCPAKWJPBJAGKN-UHFFFAOYSA-N oxadiazole Chemical compound C1=CON=N1 WCPAKWJPBJAGKN-UHFFFAOYSA-N 0.000 description 1
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- SLIUAWYAILUBJU-UHFFFAOYSA-N pentacene Chemical compound C1=CC=CC2=CC3=CC4=CC5=CC=CC=C5C=C4C=C3C=C21 SLIUAWYAILUBJU-UHFFFAOYSA-N 0.000 description 1
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- 125000002255 pentenyl group Chemical group C(=CCCC)* 0.000 description 1
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- 125000005981 pentynyl group Chemical group 0.000 description 1
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- 150000002987 phenanthrenes Chemical class 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 229960005235 piperonyl butoxide Drugs 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000003505 polymerization initiator Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000004368 propenyl group Chemical group C(=CC)* 0.000 description 1
- 125000006410 propenylene group Chemical group 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- CPNGPNLZQNNVQM-UHFFFAOYSA-N pteridine Chemical compound N1=CN=CC2=NC=CN=C21 CPNGPNLZQNNVQM-UHFFFAOYSA-N 0.000 description 1
- PBMFSQRYOILNGV-UHFFFAOYSA-N pyridazine Chemical group C1=CC=NN=C1 PBMFSQRYOILNGV-UHFFFAOYSA-N 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- JWVCLYRUEFBMGU-UHFFFAOYSA-N quinazoline Chemical compound N1=CN=CC2=CC=CC=C21 JWVCLYRUEFBMGU-UHFFFAOYSA-N 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
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- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
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- 238000004904 shortening Methods 0.000 description 1
- VMNDCBPWBMKDBI-UHFFFAOYSA-N silinane Chemical compound C1CC[SiH2]CC1 VMNDCBPWBMKDBI-UHFFFAOYSA-N 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- PXQLVRUNWNTZOS-UHFFFAOYSA-N sulfanyl Chemical class [SH] PXQLVRUNWNTZOS-UHFFFAOYSA-N 0.000 description 1
- IFLREYGFSNHWGE-UHFFFAOYSA-N tetracene Chemical compound C1=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C21 IFLREYGFSNHWGE-UHFFFAOYSA-N 0.000 description 1
- 125000001712 tetrahydronaphthyl group Chemical group C1(CCCC2=CC=CC=C12)* 0.000 description 1
- RAOIDOHSFRTOEL-UHFFFAOYSA-N tetrahydrothiophene Chemical group C1CCSC1 RAOIDOHSFRTOEL-UHFFFAOYSA-N 0.000 description 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical group C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 1
- 150000003536 tetrazoles Chemical group 0.000 description 1
- NMFKEMBATXKZSP-UHFFFAOYSA-N thieno[3,2-b]thiophene Chemical compound S1C=CC2=C1C=CS2.S1C=CC2=C1C=CS2 NMFKEMBATXKZSP-UHFFFAOYSA-N 0.000 description 1
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- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/10—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings
- C09K19/12—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing at least two benzene rings at least two benzene rings directly linked, e.g. biphenyls
-
- C—CHEMISTRY; METALLURGY
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3001—Cyclohexane rings
-
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/08—Non-steroidal liquid crystal compounds containing at least two non-condensed rings
- C09K19/30—Non-steroidal liquid crystal compounds containing at least two non-condensed rings containing saturated or unsaturated non-aromatic rings, e.g. cyclohexane rings
- C09K19/3098—Unsaturated non-aromatic rings, e.g. cyclohexene rings
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/32—Non-steroidal liquid crystal compounds containing condensed ring systems, i.e. fused, bridged or spiro ring systems
- C09K19/322—Compounds containing a naphthalene ring or a completely or partially hydrogenated naphthalene ring
-
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/06—Non-steroidal liquid crystal compounds
- C09K19/34—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring
- C09K19/3441—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom
- C09K19/3483—Non-steroidal liquid crystal compounds containing at least one heterocyclic ring having nitrogen as hetero atom the heterocyclic ring being a non-aromatic ring
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
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- C09K19/00—Liquid crystal materials
- C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
- C09K2019/0444—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group
- C09K2019/0448—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit characterized by a linking chain between rings or ring systems, a bridging chain between extensive mesogenic moieties or an end chain group the end chain group being a polymerizable end group, e.g. -Sp-P or acrylate
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- C09K19/00—Liquid crystal materials
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/54—Additives having no specific mesophase characterised by their chemical composition
- C09K19/542—Macromolecular compounds
- C09K2019/548—Macromolecular compounds stabilizing the alignment; Polymer stabilized alignment
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2323/00—Functional layers of liquid crystal optical display excluding electroactive liquid crystal layer characterised by chemical composition
- C09K2323/03—Viewing layer characterised by chemical composition
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/137—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/13775—Polymer-stabilized liquid crystal layers
Definitions
- the present invention relates to liquid crystal (FK) displays of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, as well as novel polymerizable compounds and novel FK media for
- the currently used liquid crystal displays are usually those of the TN type (twisted nematic). However, these have the disadvantage of a strong viewing angle dependence of the contrast.
- VA vertical alignment
- the FK cell of a VA display contains a layer of FK medium between two transparent electrodes, the FK medium usually having a negative value of dielectric (DK) anisotropy.
- DK dielectric
- the molecules of the FK layer are orientated in the off state perpendicular to the electrode surfaces (homeotropic) or tilted homeotropic (English, "tilted”). When an electrical voltage is applied to the electrodes, a reorientation of the FK molecules takes place parallel to the electrode surfaces.
- OCB displays optical compensated bend
- OCB displays which are based on a birefringence effect and have an FK layer with a so-called "bend” orientation and usually positive (DK) anisotropy.
- DK positive
- OCB displays typically contain one or more birefringent optical retardation films to avoid unwanted transmittance of the "bend" cell in the dark state.
- OCB displays have a wider viewing angle and shorter switching times than TN displays.
- IPS displays in-plane switching
- FK layer between two substrates, of which only one has an electrode layer with a usually comb-shaped structure.
- Substrate include, however, in contrast to IPS displays, only one is formed as a structured (comb-shaped) electrode, and the other electrode is unstructured. This creates a strong "fringe field", a strong electric field near the edge of the electrodes and an electric field throughout the cell that has both a strong vertical and a strong horizontal component, both IPS and FFS Displays show a low viewing angle dependence of the contrast.
- VA displays In more recent VA displays, the uniform alignment of the FK molecules is confined to several smaller domains within the FK cell. Between these domains, also called tilt domains, there may be disclinations. VA displays with tilt domains have greater viewing angle independence of contrast and grayscale compared to traditional VA displays. In addition, such displays are easier to manufacture, since additional treatment of the electrode surface for uniform orientation of the molecules in the on state, such as, e.g. by rubbing, is no longer necessary. Instead, the preferred direction of the tilt or tilt angle (English, "pretilt") by a special
- the distances between the slits and protrusions can be increased, which in turn leads to an extension of the switching times.
- the so-called PVA Pattemed VA
- PVA can be done without any protrusions by structuring both electrodes on the opposite sides through slots, which leads to increased contrast and improved light transmission, but is technologically difficult and makes the display more sensitive to mechanical influences (knocking , English, "tapping", etc.)
- a shortening of the switching times and an improvement of the contrast and the luminance (transmission) of the display is required.
- PS displays polymer stabilized
- PSA polymer-sustained alignment
- a small amount (for example 0.3% by weight, typically ⁇ 1% by weight) of a polymerizable compound is added to the LC medium, which, after being charged into the FK cell, is polymerized or crosslinked in situ with applied electrical voltage between the electrodes is, usually by UV photopolymerization.
- the addition of polymerisable mesogenic or liquid-crystalline compounds, also referred to as "reactive mesogens" (RM), to the LC mixture has proved particularly suitable.
- PSA-VA, PSA-OCB, PS-IPS and PS-TN displays are known.
- the PSA method leads to a pretilt in the cell.
- PSA OCB displays it is therefore possible to stabilize the bend structure so that it can do without offset voltage or reduce it.
- this pretilt has a positive effect on the switching times.
- PSA VA ads can be a Standard MVA or PVA pixel and electrode layouts are used.
- PSA-V A displays are described, for example, in JP 10-036847 A, EP 1 170 626 A2, EP 1 378 557 A1, EP 1 498 468 A1, US 2004/0191428 A1, US 2006/0066793 A1 and US 2006/0103804 A1 described.
- PSA-OCB displays are described, for example, in T.J. Chen et al., Jpn. J. Appl. Phys. 45, 2006, 2702-2704 and S.H. Kim, L.-C-Chien, Jpn. J. Appl. Phys. 43, 2004, 7643-7647.
- PS-IPS displays are described, for example, in US 6,177,972 and Appl. Phys. Lett. 1999, 75 (21), 3264.
- PS-TN displays are described, for example, in Optics Express 2004, 12 (7), 1221.
- FK-host mixture polymerizable component
- HR or VHR Voltage Holding Ratio
- the PS (A) displays disclosed in the prior art usually contain RMs in which the ring systems of the mesogenic group are linked to their neighboring groups (further rings, bridging groups, spacers or polymerizable groups) in the para position, such as, for example, those in EP 1 498 468 A1, which contains RMs selected from the following formulas
- P 1 and P 2 is a polymerizable group, for example a
- RMs such as those of the above formulas generally have a high melting point and limited solubility in many current commercial LC blends, and therefore often tend to spontaneously crystallize out of the blend.
- the risk of spontaneous polymerization also prevents the FK host mixture from being heated to dissolve the polymerizable component, so that the best possible solubility is required even at room temperature.
- there is the risk of segregation for example, when filling the FK medium in the FK display (chromatography effect), which can greatly affect the homogeneity of the display. This is compounded by the fact that the FK media are usually filled at low temperatures to reduce the risk of spontaneous polymerization (see above), which in turn has a negative effect on the solubility.
- PS (A) displays in particular of the VA and OCB type, as well as on LC media and RMs for use in such displays which do not or only slightly show the disadvantages described above and have improved properties.
- PS (A) displays as well as LC media and RMs for use in such displays, with high stability against segregation at low temperatures, high resistivity with simultaneously high operating temperature range, short switching times even at low temperatures and low threshold voltage allowing for a variety of gray levels, high contrast, and wide viewing angle, as well as high levels of voltage holding ratio (HR) after UV exposure.
- the invention had the object of providing PS (A) displays, which have the disadvantages mentioned above, or only to a lesser extent, allow the setting of a pretilt angle and preferably at the same time have very high resistivities, low threshold voltages and low switching times.
- PS (A) displays according to the invention which contain a polymerizable or polymerized mesogenic compound as described in the present invention.
- the polymerizable mesogenic compounds (RMs) of the present invention are characterized by having one or more ring systems which are not exclusively linked to their two adjacent groups via the para position common in FK molecules (ie with a bond angle of about 180 ° ), but one or more
- the RMs according to the invention can have a "nodded" molecular structure, in contrast to the rod-shaped RMs of the prior art. Further, as compared to the prior art RMs, the inventive RMs exhibit a lower melting point, less tendency to crystallize, and improved solubility in many commercial FK host blends.
- the invention thus relates to a liquid crystal (FK) display of the PS (polymer stabilized) or PSA (polymer sustained alignment) type, preferably containing an FK cell consisting of two substrates, wherein at least one substrate is translucent and at least one substrate an electrode layer, as well as an interposed between the substrates of a FK medium containing a polymerized component and a low molecular weight component, wherein the polymerized component is obtainable by polymerization of one or more polymerizable compounds between the substrates of FK ZeIIe in FK medium under application an electrical voltage, characterized in that at least one of the polymerizable compounds of formula I is selected
- R a and R b are each independently P-Sp-, H, halogen, SF 5 ,
- a 1 and A 3 are each independently of one another 1, 3-phenylene, naphthalene
- L is P-Sp-, H, OH, halogen, SF 5 , NO 2 , a carbon group or hydrocarbon group,
- Z 1 ' 2 are each, independently of one another and identical or different at each occurrence, -O-, -S-, -CO-, -CO-O-, -OCO-, -O-
- n1 and m3 are each independently 0 or 1, where m1 + m3> 0,
- n1 1, 2, 3 or 4.
- Another object of the invention are new polymerizable
- Another object of the invention is a FK medium containing one or more polymerizable compounds of the formula I.
- Another object of the invention is a FK medium containing - a polymerizable component A), containing one or more polymerizable compounds of the formula I, - a liquid-crystalline component B), hereinafter also referred to as "FK-
- Host mixture containing one or more, preferably two or more, low molecular weight (i.e., monomeric or unpolymerized) compounds.
- Another object of the invention is the use of polymerizable compounds of the formula I and FK media as described above and below in FK displays, in particular in PS and PSA displays.
- the invention further provides an LC display comprising one or more compounds of the formula I or an LC medium according to the invention, in particular a PS or PSA display, particularly preferably a PSA-VA, PSA-OCB, PS-IPS , PS-FFS or PS-TN display.
- a PS or PSA display particularly preferably a PSA-VA, PSA-OCB, PS-IPS , PS-FFS or PS-TN display.
- LC media comprising one, two or three polymerisable compounds of the formula I.
- LC media in which the polymerisable component A) exclusively polymerizable compounds of the formula
- FK media wherein component B) is an FK compound or an FK mixture having a nematic liquid crystal phase.
- achiral polymerizable compounds as well as containing FK media, preferably exclusively consisting of, achiral compounds.
- the polymerizable compounds can be added individually to the LC media, but it is also possible to use mixtures containing two or more polymerizable compounds according to the invention. Upon polymerization of such mixtures, copolymers are formed.
- the polymerizable mixtures mentioned above and below are a further subject of the invention.
- the polymerizable compounds may be mesogenic or non-mesogenic.
- Particularly preferred compounds of the formula I are those in which A 1 "3 , Z 1" 2 , P, Sp, m 1 , m 2 , m 3 and n 1 have the abovementioned meaning, and
- R x P-Sp-, H halogen, straight-chain, branched or cyclic alkyl having 1 to 25 C atoms, in which also one or more non-adjacent CH 2 groups is represented by -O-, -S-, -
- CO, -CO-O-, -O-CO-, -O-CO-O- can be replaced so that O and / or S atoms are not directly linked to one another, and in which also one or more H- Atoms may be replaced by F, Cl or P-Sp-, an optionally substituted aryl or aryloxy group having 6 to 40 carbon atoms, or an optionally substituted heteroaryl or heteroaryloxy group having 2 to 40 carbon atoms,
- R a and R b denote identical or different radicals P-Sp-,
- R a and R b denote identical or different radicals P-Sp-, in which one of the radicals Sp denotes a single bond,
- one of the radicals R a and R b is P-Sp-, and the other L is as defined above, straight-chain or branched alkyl having 1 to 25 C atoms, in which one or more non-adjacent CH 2 -
- Z 1 and Z 2 denote a single bond
- radicals A 2 are selected from 1, 4-phenylene, naphthalene-1, 4-diyl or naphthalene-2,6-diyl, where in these groups one or more CH groups may be replaced by N, cyclohexane-1, 4-diyl, in which also one or more non-adjacent CH 2 groups can be replaced by O and / or S, 1,4-cyclohexenylene, bicyclo [1.1.1] pentane-1,3-diyl, bicyclo [2.2. 2] octane-1, 4-diyl,
- radicals A 2 are selected from 1, 4-phenylene, naphthalene-1, 4-diyl or naphthalene-2,6-diyl, wherein in these groups one or more CH groups may be replaced by N, where all these radicals unsubstituted or monosubstituted or polysubstituted by L,
- radicals A 1 and A 3 are selected from 1, 3-phenylene, naphthalene-1, 3-diyl, naphthalene-1, 6-diyl, naphthalene-2,5-diyl and naphthalene-2,7-diyl, wherein in these radicals may also be replaced by N or more CH groups, where all of these radicals may be unsubstituted or monosubstituted or polysubstituted by L,
- radicals A 1 and / or A 3 preferably in the meta or para position for linking with the adjacent ring group A 1 "3 or the corresponding bridge group Z 1 ' 2 , one or more substituents L, which means P-Sp-,
- R, P and Sp at each occurrence have the abovementioned meaning, and R preferably denotes P-Sp, L has one of the meanings given above and below, r is 0, 1, 2, 3 or 4 and s is 0 , 1, 2 or 3.
- compounds of the formulas 11-120 which have at least one substituent L in the ortho or meta position relative to the group P-Sp and / or R, which is P-Sp-.
- Particularly preferred are compounds of this type wherein R is P-Sp-.
- Preference is furthermore given to compounds of this type in which at least one, preferably two, of the radicals Sp are a single bond and at least one, preferably exactly one, of the radicals Sp is a spacer group mean.
- Particularly preferred compounds of this type are selected from the following sub-formulas:
- R, P and Sp at each occurrence identically or differently, have the abovementioned meaning, and R preferably denotes P-Sp, L has one of the meanings given above and below, other than P-Sp, r 0, 1, 2, 3 or 4, s is 0, 1, 2 or 3 and 1 is 0, 1 or 2.
- PSA PS displays and PSA displays unless otherwise specified.
- mesogenic group is known to the person skilled in the art and described in the literature, and means a group which, due to the anisotropy of its attractive and repulsive interactions, contributes substantially to producing a liquid crystal (FK) phase in low molecular weight or polymeric substances.
- Compounds containing mesogenic groups need not necessarily even have a FK phase. It is also possible that mesogenic compounds show FK phase behavior only after mixing with other compounds and / or after polymerization.
- Typical mesogenic groups are, for example, rigid rod-shaped or disc-shaped units.
- spacer group (Engl. "Spacer” or “spacer group”), also referred to below as “Sp”, is known to the person skilled in the art and described in the literature, see, for example, Pure Appl. Chem. 73 (5), 888 (2001) and C. Tschierske, G. PeIzI, S. Diele, Angew. Chem. 2004, 116, 6340-6368. Unless otherwise indicated, the term “spacer” or “spacer” above and below refers to a flexible group linking the mesogenic group and the polymerizable group (s) in a polymerizable mesogenic compound (“RM”) ,
- reactive mesogen refers to a compound containing a mesogenic group and one or more functional groups suitable for polymerization (also referred to as polymerizable group or group P).
- low molecular weight compound and "unpolymerizable compound” mean, usually monomeric, compounds which do not have a functional group suitable for polymerization under the usual conditions known to those skilled in the art, especially under the conditions used to polymerize the RMs.
- organic group means a carbon or hydrocarbon group.
- carbon group means a monovalent or polyvalent organic group containing at least one carbon atom, which either contains no further atoms (such as -C ⁇ C-), or optionally one or more other atoms such as N, O, S, P, Si, Se 1 As 1 Te or Ge contains (eg carbonyl, etc.).
- hydrocarbon group means a carbon group which additionally has one or more H atoms and optionally one or more heteroatoms such as, for example, N, O, S, P, Si, Se, As, Te or
- Halogen means F, Cl, Br or I.
- a carbon or hydrocarbon group may be a saturated or unsaturated group. Unsaturated groups are, for example, aryl, alkenyl or alkynyl groups.
- a carbon or hydrocarbon radical having more than 3 C atoms may be straight-chain, branched and / or cyclic, and may also have spiro-linkages or fused rings.
- alkyl also include polyvalent groups, for example alkylene, arylene, heteroarylene, etc.
- aryl means an aromatic carbon group or a group derived therefrom.
- heteroaryl means "aryl” as defined above containing one or more heteroatoms.
- Preferred carbon and hydrocarbon groups are optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkylcarbonyl, alkoxycarbonyl, alkylcarbonyloxy and alkoxycarbonyloxy having from 1 to 40, preferably 1 to 25, more preferably 1 to 18 carbon atoms, optionally substituted aryl or aryloxy having 6 to 40, preferably 6 to 25 C-atoms, or optionally substituted alkylaryl, arylalkyl, alkylaryloxy, arylalkyloxy, arylcarbonyl, aryloxycarbonyl, arylcarbonyloxy and aryloxycarbonyloxy having 6 to 40, preferably 6 to 25 C-atoms.
- carbon and hydrocarbon groups are d- C 40 alkyl, C 2 -C 40 alkenyl, C 2 -C 40 alkynyl, C 3 -C 40 allyl 1 C 4 -C 40 alkyldienyl, C4-C40 polyenyl, C6 -C 40 aryl, C 6 -C 40 alkylaryl, C 6 -C 40 arylalkyl, C 6 -C 40
- Particular C 1 -C 22 alkyl, C 2 -C 22 alkenyl, C 2 -C 22 alkynyl, C 3 -C 22 allyl 1 C 4 -C 22 alkyldienyl, C 6 -C 12 aryl are preferred , C 6 - C 2O arylalkyl, and C 2 -C 20 heteroaryl.
- R x is preferably H, halogen, a straight-chain, branched or cyclic alkyl chain having 1 to 25 C atoms, in which one or more nonadjacent C atoms are represented by -O-, -S-, -CO-, -CO- O-, -O-CO-, -O-CO- O- may be replaced, wherein also one or more H atoms may be replaced by fluorine, an optionally substituted aryl or aryloxy group having 6 to 40 carbon atoms, or an optionally substituted heteroaryl or heteroaryloxy group having 5 to 40 carbon atoms.
- alkyl groups are methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, s-butyl, t-butyl, 2-methylbutyl, n-pentyl, s-pentyl, cyclopentyl, n-hexyl, cyclohexyl, 2- Ethylhexyl, n-heptyl, cycloheptyl, n-octyl, cyclooctyl, n-nonyl, n-decyl, n-undecyl, n-dodecyl, dodecanyl, trifluoromethyl, perfluoro-n-butyl, 2,2,2-trifluoroethyl, perfluorooctyl, Perfluorohexyl etc.
- Preferred alkenyl groups are, for example, ethenyl, propenyl, butenyl, pentenyl, cyclopentenyl, hexenyl, cyclohexenyl, heptenyl, cycloheptenyl, octenyl, cyclooctenyl, etc.
- Preferred alkynyl groups are, for example, ethynyl, propynyl, butynyl, pentynyl, hexynyl, octynyl, etc.
- Preferred alkoxy groups are, for example, methoxy, ethoxy, 2- Methoxyethoxy, n-propoxy, i-propoxy, n-butoxy, i-butoxy, s-butoxy, t-butoxy, 2-methylbutoxy, n-pentoxy, n-hexoxy, n-heptoxy, n-octoxy, n-nonoxy, n-decoxy, n-undecoxy, n-dodecoxy, etc.
- Preferred amino groups are, for example, dimethylamino,
- Aryl and heteroaryl groups can be mononuclear or polynuclear, i. they may have a ring (such as phenyl) or two or more rings, which may also be fused (such as naphthyl) or covalently linked (such as biphenyl), or a combination of fused and linked rings.
- Heteroaryl groups contain one or more heteroatoms, preferably selected from O, N, S and Se.
- Preferred aryl groups are, for example, phenyl, biphenyl, terphenyl, [1'-pyridyl], naphthyl, anthracene, binaphthyl, phenanthrene, pyrene, dihydropyrene, chrysene, perylene, tetracene, pentacene, benzopyrene, fluorene, indene, indenofluorene, spirobifluorene , Etc.
- Preferred heteroaryl groups are, for example, 5-membered rings such as pyrrole, pyrazole, imidazole, 1, 2,3-triazole, 1, 2,4-triazole, tetrazole, furan,
- heteroaryl groups may also be substituted by alkyl, alkoxy, thioalkyl, fluorine, fluoroalkyl or other aryl or heteroaryl groups.
- the (non-aromatic) alicyclic and heterocyclic groups include both saturated rings, i. such exclusively
- Heterocyclic rings contain one or more heteroatoms, preferably selected from Si, O, N, S and Se.
- the (non-aromatic) alicyclic and heterocyclic groups can be mononuclear, ie contain only one ring (such as cyclohexane), or be polynuclear, ie contain several rings (such as decahydronaphthalene or bicyclooctane). Particularly preferred are saturated groups. Also preferred are mono-, di- or trinuclear groups having 3 to 25 carbon atoms, which optionally contain fused rings and are optionally substituted.
- 5-, 6-, 7- or 8-membered carbocyclic groups wherein also one or more C atoms may be replaced by Si and / or one or more CH groups may be replaced by N and / or one or more non-adjacent CH 2 groups may be replaced by -O- and / or -S-.
- Preferred alicyclic and heterocyclic groups are, for example, 5-membered groups such as cyclopentane, tetrahydrofuran, tetrahydrothiofuran, pyrrolidine, 6-membered groups such as cyclohexane,
- the aryl, heteroaryl, carbon and hydrocarbon radicals optionally have one or more substituents, which are preferably selected from the group consisting of SiIiI 1 sulfo, sulfonyl, formyl, amine, imine, nitrile, mercapto, nitro, halogen, Ci_ 12 alkyl , C 6 - I2 aryl, C M2 alkoxy, hydroxy, or combinations of these groups.
- Preferred substituents are, for example, solubility-promoting groups such as alkyl or alkoxy, electron-withdrawing groups such as fluorine, nitro or nitrile, or substituents for increasing the glass transition temperature (Tg) in the polymer, in particular bulky groups such as e.g. t-butyl or optionally substituted aryl groups.
- Substituted SiIyI or aryl is preferably substituted by halogen, - CN, R 0 , -OR 0 , -CO-R 0 , -CO-OR 0 , -O-CO-R 0 or -O-CO-OR 0 , wherein R 0 has the meaning given above.
- substituents L are, for example, F, Cl, CN, NO 2 , CH 3 , C 2 H 5 , OCH 3 , OC 2 H 5 , COCH 3 , COC 2 H 5 , COOCH 3 , COOC 2 H 5 , CF 3 , OCF 3 , OCHF 2 , OC 2 F 5 , furthermore phenyl. wherein L has one of the meanings given above.
- the polymerizable group P is a group suitable for a
- Polymerization reaction such as free-radical or ionic chain polymerization, polyaddition or polycondensation, or for a polymer-analogous reaction, for example, the addition or condensation to a polymer backbone is suitable.
- W 1 is H, F, Cl, CN, CF 3 , phenyl or alkyl having 1 to 5 carbon atoms, in particular H, F, Cl or CH 3
- W 2 and W 3 are each independently H or alkyl having 1 to 5 C atoms, in particular H, methyl, ethyl or n-propyl
- W 4 , W 5 and W 6 are each independently Cl, oxaalkyl or oxacarbonylalkyl having 1 to 5 C atoms
- W 7 and W 8 are each independently H, Cl or alkyl having 1 to 5 carbon atoms
- Phe is 1, 4-phenylene, which is optionally substituted with one or more radicals L as defined above, ki , k 2 and k 3 are each independently 0 or 1, k 3 is preferably 1.
- the compounds of the formula I and their sub-formulas contain one or more branched radicals R a and / or R b and / or L with two or more polymerizable groups P (multifunctional polymerizable radicals).
- Suitable radicals of this type, as well as polymerizable compounds containing them, are described, for example, in US Pat. No. 7,060,200 B1 or US 2006/0172090 A1.
- aa and bb are each independently 0, 1, 2, 3, 4, 5 or 6,
- X has one of the meanings given for X 1 .
- P 1 "5 each independently have one of the meanings given above for P.
- Preferred spacer groups Sp are selected from the formula Sp'-X ', so that the radical "P-Sp-" corresponds to the formula "P-Sp'-X 1 -", where
- R 0 and R 00 are each independently H or alkyl of 1 to 12 carbon atoms
- Y 2 and Y 3 are each independently H, F, Cl or CN.
- X 1 is preferably -O-, -S-CO-, -COO-, -OCO-, -O-COO-, -CO-NR 0 -, -NR ° -CO-, -NR ° -CO-NR ° - or a single bond.
- Typical spacer groups Sp ' are, for example - (CH 2) pi-, - (CH 2 CH 2 O) Q1 - CH 2 CH 2 -, -CH 2 CH 2 -S-CH 2 CH 2 -, -CH 2 CH 2 - NH-CH 2 CH 2 - or - (SiR ° R 00 -O) p1 -, wherein p1 is an integer from 1 to 12, q1 is an integer from 1 to 3, and R 0 and R 00 are those given above Own meanings.
- Particularly preferred groups -X'-Sp'- are - (CH 2 ) p1 -, -O- (CH 2 ) p r, -OCO- (CH 2 ) p i-, -OCOO- (CH 2 ) p1 -.
- Particularly preferred groups Sp ' are, for example, in each case straight-chain ethylene, propylene, butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene, undecylene, dodecylene, octadecylene, ethyleneoxyethylene, methyleneoxybutylene, ethylene thioethylene, ethylene-N-methyl-iminoethylene, 1-methylalkylene , Ethenylene, propenylene and butenylene.
- Synthesis of polymerizable acrylates and methacrylates of the formula I can be carried out in analogy to the methods described in US Pat. No. 5,723,066. Further, particularly preferred methods can be found in the examples. In the simplest case, the synthesis is carried out by esterification or etherification of commercially available diols of the general formula HO-A 1 -Z 1 - (A 2 -Z 2 ) mi-A 3 -OH, wherein A 1'3 , Z 1 ' 2 and m1 have the meanings given above, such as 1- (3-hydroxyphenyl) -phenyl-3-ol, with corresponding acids, acid derivatives, or halogenated
- the polymerizable compounds are polymerized or crosslinked in FK medium between the substrates of the LC display by applying a voltage by in-situ polymerization (if a compound contains two or more polymerizable groups).
- Suitable and preferred polymerization methods are, for example, thermal or photopolymerization, preferably photopolymerization, in particular UV photopolymerization.
- one or more initiators can also be added.
- Suitable conditions for the polymerization, as well as suitable types and amounts of initiators, are known in the art and described in the literature.
- For the radical polymerization e.g.
- the commercially available photoinitiators Irgacure651®, Irgacure184®, Irgacure907®, Irgacure369®, or Darocure1173® (Ciba AG). If an initiator is used, its proportion in the total mixture is preferably 0.001 to 5 wt .-%, particularly preferably 0.001 to 1 wt .-%.
- the polymerization can also be carried out without addition of an initiator.
- the LC medium contains no polymerization initiator.
- the polymerizable component A) or the LC medium may also contain one or more stabilizers to prevent unwanted spontaneous polymerization of the RMs, for example during storage or transport.
- stabilizers Suitable types and amounts of stabilizers are known to those skilled in the art and described in the literature.
- the commercially available stabilizers of the series Irganox® (Ciba AG) are particularly suitable. If stabilizers are used, their proportion, based on the total amount at RMs or polymerisable component A), preferably 10-5000 ppm, particularly preferably 50-500 ppm.
- the polymerizable compounds of the invention are particularly suitable for polymerization without initiator, which brings significant benefits, such as lower material costs and in particular a lower contamination of the LC medium by possible residual amounts of the initiator or its degradation products.
- the LC media according to the invention preferably comprise ⁇ 5%, more preferably ⁇ 1%, very preferably ⁇ 0.5% of polymerisable compounds, in particular polymerisable compounds of the abovementioned formulas.
- the polymerizable compounds according to the invention may be added individually to the LC media, but it is also possible to use mixtures comprising two or more polymerizable compounds according to the invention, or mixtures comprising one or more polymerizable compounds according to the invention and one or more additional polymerizable compounds (comonomers).
- the comonomers may be mesogenic or non-mesogenic. Upon polymerization of such mixtures, copolymers are formed.
- the polymerizable mixtures mentioned above and below are a further subject of the invention.
- Suitable and preferred mesogenic comonomers are, for example, those selected from the following formulas:
- P 1 and P 2 have one of the meanings given for P and are preferably acrylate or methacrylate, Sp 1 and Sp 2 have one of the meanings given for Sp or are a single bond,
- Z 2 and Z 3 are each independently of one another -COO- or -OCO,
- Alkoxycarbonyloxy having 1 to 25 C atoms, in which also one or more H atoms can be replaced by F, Cl or P-Sp-, means L 'and L "are each independently of one another H, F or Cl, r 0, 1, 2, 3 or 4, s is 0, 1, 2 or 3, t is 0, 1 or 2, x is 0 or 1, and
- the LC media for use in the LC displays according to the invention contain, in addition to the polymerizable compounds described above, an LC mixture ("host mixture") comprising one or more, preferably two or more low molecular weight (ie monomeric or unpolymerized) compounds , The latter are stable or unreactive to a polymerization reaction under the conditions used for the polymerization of the polymerizable compounds.
- the host mixture can be any FK mixture suitable for use in conventional VA and OCB displays.
- Suitable LC mixtures are known to the person skilled in the art and described in the literature, for example mixtures in VA displays in EP 1 378 557 A1, and mixtures for OCB displays in EP 1 306 418 A1 and DE 102 24 046 A1.
- FK medium containing one or more compounds selected from the following formulas:
- both radicals L 1 and L 2 are F, or one of the radicals L 1 and L 2 F and the other Cl, or both radicals L 3 and L 4 F, or one of the radicals L 3 and L 4 F and the other Cl.
- the compounds of the formula CY are preferably selected from the following sub-formulas
- alkyl and alkyl * each independently of one another denote a straight-chain alkyl radical having 1-6 C atoms, and alkenyl a straight-chain alkenyl radical having 2-6 C atoms.
- the compounds of formula PY are preferably selected from the following sub-formulas:
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms and alkenyl a straight-chain alkenyl radical having 2-6 C atoms.
- the compounds of the formula ZK are preferably selected from the following sub-formulas:
- alkyl and alkyl * each independently represent a straight-chain alkyl radical having 1-6 C atoms
- alkenyl is a straight-chain alkenyl radical having 2-6 C atoms.
- R 5 and R 6 are each independently one of the meanings given above for R 1 ,
- the compounds of the formula DK are preferably selected from the following sub-formulas:
- Alky! and alkyl * each independently of one another denote a straight-chain alkyl radical having 1-6 C atoms
- alkenyl and alkenyl * each independently of one another denote a straight-chain alkenyl radical having 2-6 C atoms.
- L 1 and L 2 are each independently F, Cl, OCF 3 , CF 3 , CH 3 , CH 2 F, CHF 2 .
- both radicals L 1 and L 2 are F or one of the radicals L 1 and L 2 F and the other Cl.
- the compounds of the formula LY are preferably selected from the following sub-formulas
- R 1 has the meaning given above and v is an integer from 1 to 6.
- R 1 is preferably straight-chain alkyl or alkenyl, in particular CH 3 , C 2 H 5 , nC 3 H 7 , nC 4 H 9 , nC 5 Hn,
- FK medium which additionally contains one or more compounds selected from the following formulas:
- X is F.
- FK medium which additionally contains one or more compounds selected from the following formulas:
- R 5 has one of the meanings given above for R 1 , alkyl C 1-6 alkyl, d O or 1, and z and m are each independently an integer from 1 to 6.
- R 5 is particularly preferably Ci in these compounds.
- 6 -alkyl or -alkoxy or C2 6 - alkenyl, d is preferably 1.
- the LC medium according to the invention contains one or more compounds of the above-mentioned formulas in amounts of> 5 wt.%.
- FK medium which additionally contains one or more biphenyl compounds of the following formulas:
- alkyl and alkyl * each independently of one another denote a straight-chain alkyl radical having 1-6 C atoms
- alkenyl and alkenyl * each independently of one another denote a straight-chain alkenyl radical having 2-6 C atoms.
- the proportion of the biphenyls of the formulas B1 to B3 in the LC mixture is preferably at least 3% by weight, in particular> 5% by weight.
- the compounds of the formula B2 are particularly preferred.
- the compounds of formula B1 to B3 are preferably selected from the following sub-formulas
- alkyl * is an alkyl radical having 1-6 C atoms.
- the medium according to the invention contains one or more compounds of the formulas B1a and / or B2c.
- FK medium which additionally contains one or more terphenyl compounds of the following formula:
- R 5 and R 1 6 0 j • eweils independently of one another have one of the meanings given above for R 1 and and each independently
- L 5 is F or Cl, preferably F
- L 6 is F, Cl, OCF 3 , CF 3 , CH 3 , CH 2 F or CHF 2 , preferably F.
- the compounds of the formula T are preferably selected from the following sub-formulas
- R is a straight-chain alkyl or alkoxy radical having 1-7 C atoms
- R * is a straight-chain alkenyl radical having 2-7 C atoms
- m is an integer from 1 to 6.
- R is methyl, ethyl, propyl, butyl, pentyl, hexyl, methoxy, ethoxy, propoxy, butoxy or pentoxy.
- the LC medium according to the invention contains the terphenyls of the formulas T and their preferred sub-formulas preferably in an amount of 2-30% by weight, in particular of 5-20% by weight.
- R preferably denotes alkyl, furthermore alkoxy in each case with 1-5 C atoms.
- the terphenyls are preferably used in mixtures according to the invention if the ⁇ n value of the mixture is> 0.1 should.
- Preferred mixtures contain 2-20% by weight of one or more terphenyl compounds of the formula T, preferably selected from the group of the compounds T1 to T22.
- FK medium which additionally contains one or more compounds of the following formulas:
- R 1 and R 2 have the meanings given above, and preferably each independently of one another represent straight-chain alkyl or alkenyl.
- Preferred media contain one or more compounds selected from the formulas 01, 03 and 04.
- R 9 is H, CH 3 , C 2 H 5 or nC 3 H 7 and q is 1, 2 or 3, and R 7 has one of the meanings given for R 1 , preferably in amounts of> 3% by weight, in particular> 5 % By weight, and most preferably from 5-30% by weight.
- R 7 is preferably straight-chain alkyl and R 9 is CH 3 , C 2 H 5 or nC 3 H 7 .
- Particularly preferred are the compounds of the formula FM, FI2 and FI3.
- FK medium which additionally contains one or more compounds of the following formulas:
- R 8 has the meaning given for R 1 and alkyl is a straight-chain alkyl radical having 1-6 C atoms.
- LC medium additionally containing one or more compounds having a tetrahydronaphthyl or naphthyl moiety, e.g. the compounds selected from the following formulas:
- FK medium which additionally contains one or more difluordibenzochromans and / or chromans of the following
- R 11 and R 12 each independently have the abovementioned meaning, and c is 0 or 1, preferably in amounts of 3 to 20 wt.%, In particular in amounts of 3 to 15 wt.%.
- alkyl and alkyl * each independently of one another denote a straight-chain alkyl radical having 1-6 C atoms
- alkenyl and alkenyl * each independently of one another denote a straight-chain alkenyl radical having 2-6 C atoms.
- FK medium which additionally contains one or more fluorinated ones
- R 11 and R 12 each independently have the meanings given above, b is 0 or 1, LF and r is 1, 2 or 3.
- Particularly preferred compounds of the formulas PH and BF are selected from the following sub-formulas:
- R and R 1 each independently represent a straight-chain alkyl or alkoxy radical having 1-7 C atoms.
- FK medium preferably for use in PSA-OCB displays, which contains one or more compounds of the following formulas:
- R u in each occurrence identically or differently n-alkyl, alkoxy, oxaalkyl, fluoroalkyl or alkenyl, each having up to 9 C atoms,
- X u is F, Cl or in each case halogenated alkyl, alkenyl, alkenyloxy or alkoxy having in each case up to 6 C atoms,
- Y 1-6 are each independently H or F
- the compounds of the formula AA are preferably selected from the following formulas:
- R 0 and X 0 have the abovementioned meaning, and X 0 is preferably F. Particular preference is given to compounds of the formulas AA2 and AA6.
- the compounds of formula BB are preferably selected from the following formulas:
- R 0 and X 0 have the abovementioned meaning, and X 0 is preferably F. Particular preference is given to compounds of the formulas BB1, BB2 and BB5.
- the compounds of the formula CC are preferably selected from the following formulas:
- FK medium containing 1 to 5, preferably 1, 2 or 3 polymerizable compounds.
- FK medium which contains 1 to 8, preferably 1 to 5 compounds of the formula CY1, CY2, PY1 and / or PY2.
- the proportion of these compounds in the total mixture is preferably 5 to 60%, particularly preferably 10 to 35%.
- Compounds are preferably 2 to 20% each.
- FK medium which 1 to 8, preferably 1 to 5 compounds of
- Formula CY9, CY10, PY9 and / or PY10 contains.
- the proportion of these compounds in the total mixture is preferably 5 to 60%, particularly preferably 10 to 35%.
- the content of these individual compounds is preferably 2 to 20% in each case.
- FK medium which contains 1 to 10, preferably 1 to 8, compounds of the formula ZK, in particular compounds of the formula ZK1,
- ZK2 and / or ZK6 The proportion of these compounds in the total mixture is preferably 3 to 25%, particularly preferably 5 to 45%.
- the content of these individual compounds is preferably 2 to 20% in each case.
- the combination of compounds of the above preferred embodiments a) -x) with the above-described polymerized Compounds cause low threshold voltages, low rotational viscosities and very good low-temperature stabilities with consistently high clearing points and high HR values in the LC media according to the invention, and allows setting of a pretilt angle in PS (A) displays.
- the LC media in PS (A) displays show significantly reduced switching times compared to the prior art media, especially the gray scale switching times.
- the liquid-crystal mixture preferably has a nematic phase range of at least 80 K, particularly preferably of at least 100 K, and a rotational viscosity of not more than 250, preferably not more than 200 mPa s, at 20 ° C.
- LC media according to the invention for use in displays of the VA type have a negative dielectric anisotropy ⁇ , preferably from about -0.5 to -7.5, in particular from about -2.5 to -5.5 at 20 0 C and 1 kHz.
- FK media according to the invention for use in displays of the OCB type have a positive dielectric anisotropy ⁇ , preferably from about +7 to +17 at 20 ° C and 1 kHz.
- the birefringence ⁇ n in FK media according to the invention for use in displays of the VA type is preferably below 0.16, more preferably between 0.06 and 0.14, in particular between 0.07 and 0.12.
- the birefringence ⁇ n in FK media according to the invention for use in displays of the OCB type is preferably between 0.14 and 0.22, in particular between 0.16 and 0.22.
- the dielectrics may also contain further additives known to the person skilled in the art and described in the literature. For example, it is possible to add 0 to 15% by weight of pleochroic dyes, furthermore nanoparticles, conductive salts, preferably ethyldimethyldodecylammonium 4-hexoxybenzoate, tetrabutylammonium tetraphenylborate or complex salts of crown ethers (cf., for example, Haller et al., Mol. Cryst. 24, 249-258 (1973)) for improving the conductivity, or substances for changing the dielectric anisotropy, the viscosity and / or the orientation of the nematic phases. Such substances are described, for example, in DE-A 22 09 127, 2240 864, 23 21 632, 23 38 281, 24 50 088, 26 37430 and 28 53 728.
- the preparation of the FK media which can be used according to the invention is carried out in a conventional manner, for example by mixing one or more of the abovementioned compounds with one or more polymerizable compounds as defined above and, if appropriate, with further liquid-crystalline compounds and / or additives.
- the desired amount of the components used in lesser amount is dissolved in the constituent of the main component, expediently at elevated temperature. It is also possible solutions of the components in an organic solvent, e.g. in acetone, chloroform or methanol, and the solvent after
- the LC media according to the invention can also contain compounds in which, for example, H, N, O, Cl, F have been replaced by the corresponding isotopes.
- the structure of the FK displays according to the invention corresponds to the
- PS (A) displays conventional geometry as in the cited at the outset the technique is described. Geometries without protrusions are preferred, especially those in which, moreover, the electrode on the color filter side is unstructured and only the electrode on the TFT side has slots. Particularly suitable and preferred electrode structures for PSA-VA displays are described, for example, in US 2006/0066793 A1.
- threshold voltage for the present invention refers to the capacitive threshold (V 0 ), also called the Freedericksz threshold, unless explicitly stated otherwise In the examples, as is generally customary, the optical threshold for 10% relative contrast (Vi 0 ).
- Display has two plane-parallel carrier plates at a distance of 4 ⁇ m and Electrode layers with overlying oriented layers of rubbed polyimide on the inner sides of the carrier plates, which cause a homeotropic edge orientation of the liquid crystal molecules.
- the polymerizable compounds are indicated in the display by UV
- Irradiation irradiated at a given time while a voltage is applied to the display (usually 10V to 30V AC, 1 kHz).
- a mercury vapor lamp of 28 mW / cm 2 was used, the intensity was measured with a standard UV meter (manufactured by Ushio UNI meter) equipped with a band-pass filter at 365nm.
- the tilt angle is determined by a rotary crystal experiment (Autronic-Melcher's TBA-105). A small value (i.e., a large deviation from the 90 ° angle) corresponds to a large TiIt.
- the compound is described in the literature (CAS 26988-39-6) and may be e.g. by Suzuki coupling of the commercially available compounds m-benzyloxybromobenzene (CAS 53087-13-1) and m-benzyloxybenzene boronic acid (CAS 156682-54-1).
- Example 2 In analogy to Example 1 is obtained from biphenyl-3,3'-diol and methacrylic acid, the acrylic acid 3'-acryloyloxy-biphenyl-3-ylester as a colorless solid of mp. 48 0 C.
- 2-Methacrylic acid 3 '- [3- (2-methyl-acryloyloxy) -propyl] -biphenyl-3-yl-ester (4) is prepared as follows.
- Phases are filtered through silica gel with heptane / ethyl acetate (1: 1) and the crude product is recrystallized from toluene.
- 3- (3'-Benzyloxy-biphenyl-3-yl) -propionic acid is obtained as a colorless solid.
- the united org. Phases are mixed with water and sat.
- Phases are filled with sat. Natriumchloridlsg. washed and dried over sodium sulfate.
- the solvent is i. Vak. removed and the residue with toluene / ethyl acetate (1: 1) filtered through silica gel.
- 4- [4'-Benzyloxy-5- (4-hydroxybut-1-ynyl) -biphenyl-3-yl] -but-3-yn-1-ol is obtained as a colorless oil.
- the solubility of the compound (1) is compared with the solubility of the structure-analogous compound (A) known from the prior art (eg EP 1 498 468 A1), in which the polymerisable groups are linked in the para position to the mesogenic group:
- each compound is added under stirring at 50 0 C (1/2 hour) in the commercially available nematic LC mixture LCT-06-441 (Merck KGaA, Darmstadt) were dissolved in a concentration of 5 wt .-%, and then, without stirring, cooled to room temperature.
- the compound of the invention shows a significantly better solubility than the compound of the prior art.
- the nematic FK-host mixture N1 is formulated as follows
- a polymerizable monomeric compound from Examples 1 to 10 0.3% are added to the LC mixture N1 and the resulting mixtures are filled in VA-e / o test cells (90 ° rubbed, Orientation layer VA polyimide, layer thickness d ⁇ 4 ⁇ m). Applying a voltage of 10V (AC), each cell is irradiated for 20 minutes with UV light of intensity 28mW / cm 2 , thereby polymerizing the monomeric compound.
- an additional 0.006% of the photoinitiator lrgacure-651 is added to the FK / monomer mixture and the exposure time is shortened to 2 minutes. Before and after UV irradiation, the tilt angle is determined by means of a rotary crystal experiment (Autronic-Melcher's TBA-105).
- the compounds (1) - (10) according to the invention are thus particularly suitable for use in PS (A) displays.
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- 2008-07-31 KR KR1020157010739A patent/KR101649086B1/en active IP Right Grant
- 2008-07-31 DE DE102008035889A patent/DE102008035889A1/en not_active Withdrawn
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2014
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Title |
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See references of WO2009030322A1 * |
Also Published As
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KR20150056862A (en) | 2015-05-27 |
JP6162059B2 (en) | 2017-07-12 |
TW200920822A (en) | 2009-05-16 |
CN101848978A (en) | 2010-09-29 |
EP2181174B1 (en) | 2012-01-25 |
CN101848978B (en) | 2014-06-18 |
KR20150056863A (en) | 2015-05-27 |
US20110101269A1 (en) | 2011-05-05 |
JP2014160248A (en) | 2014-09-04 |
ATE542875T1 (en) | 2012-02-15 |
KR20100070337A (en) | 2010-06-25 |
US8313669B2 (en) | 2012-11-20 |
KR101676231B1 (en) | 2016-11-14 |
JP2010536894A (en) | 2010-12-02 |
WO2009030322A1 (en) | 2009-03-12 |
JP5908209B2 (en) | 2016-04-26 |
KR20150108042A (en) | 2015-09-24 |
KR101649086B1 (en) | 2016-08-17 |
TWI470064B (en) | 2015-01-21 |
KR101649088B1 (en) | 2016-08-17 |
KR20160020581A (en) | 2016-02-23 |
KR101638756B1 (en) | 2016-07-12 |
DE102008035889A1 (en) | 2009-03-19 |
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